Improved still



'G,W,BO0KWALTER"S WPROVED STILL 50mm PATENTED NOV 26 I867 INVENTOR WWITNESSES flzw W M gnitrh -1&I15 gaunt ffitiz.

GEO RGE W. BOOKWALTER, OF ROA-ItOKE, OHIO.

' Lam-8 Patent No. 71,270, dated Nopember 26, 1867.

IMPROVED STILL.

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r0 WHOM I1 MAY OONOERN:

Be it known that I, GEORGE W. BOOKWALTER, of Roanoke, in the county ofPutnam, and State ofOhio, have invented a new and useful Improvement inStill-Boilers; and'I do declare that the following is a just, true, andaccurate description of the same, reference being had to theaccompanying drawings, and to the letters of reference markedthereommuking a part of this specification l Figure 1 is a perspectiveview of my boiler, showing the attachment of the drum.

Figure 2 is a sectional view of the same, showing the arrangementof theflue.

The same letters refer to similar parts in each figure. v

The object of my invention is to save fuel and produce a more rapidevaporation, which is done by carrying a flue from the rear end of thefire-arch, through, the bottomof the boiler, thence with-an elbow,carrying it above the bottom of the boiler to the front thereof, andthence withanother elbow into the smoke-stack By this arrangement I-present nearly twice the amount of the fluid to be'boiled to the heatingsurface of the fire. Should the heat be so great as to produce too rapidboiling, so that there is danger of the fluid beingforced into thecondenser before it is converted into steam, it is prevented from sodoing by the drum in the conduit-pipe, which must become perfectly fullbefore such an accident could happen.

Having thus described the object, I will now describe the manufacture ofmy boiler, so that those skilled in the art can manufacture them,special reference being had to the accompanying drawings.

A, is a boiler of the ordinary form; B is the conduit-pipe, to conveythe steam from the boiler A to the condenser; O is the smoke-stack; D isthe flue, extending from near the rear to near the front of the boilerA, and there connecting with the smoke-stack G; E is the drum, into thebottom and out of the top of which the steam is conducted .by theconduit-pipe B; F is the ordinary funnel for filling the boiler A; andGan ordinary pipe for drawing oil the contents of the boiler A whendesired. I i

What I claim as my inventiozuand desire to secure by Letters Patent, is-

1. The flue D, arranged substantially as described for the purposedesigned.

2. The drum E upon the pipe that conveys the steam to the-condenser, orany similar device for the purpose described. i i p I 3. The.combination and arrangement of the still-boiler A, the couduit-pipeB,the smoke-stack C, with the flue D and the drum E, all arrangedsubstantially as described for the purpose designed.

p G. W. BOOKWALTER. Witnesses: k. I

GEO. RUHLANDT,

I W. AMB'RID'GE.

